Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing
Patent
1990-03-01
1991-11-05
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Antihalation or filter layer containing
430593, 430944, G03C 102
Patent
active
050631462
ABSTRACT:
A silver halide photographic material having a hydrophilic colloidal layer containing a dispersion of fine solid particles of a dye is disclosed, said dye being represented by formula (I): ##STR1## wherein L represents a nitrogen atom or a group composed of 1, 3, 5 or 7 substituted or unsubstituted methine group(s) connected via a conjugated double bond(s); E represents O, S, or N--R.sup.9 ; and R.sup.0 through R.sup.9 are as defined in the specification. The dye of formula (I) colors a specific hydrophilic colloidal layer without being diffused to other layers and is rapidly decolorized or washed off on development processing.
REFERENCES:
patent: 4102688 (1978-07-01), Sugiyama et al.
patent: 4182886 (1980-01-01), Kitzing et al.
patent: 4233399 (1980-11-01), Kitzing et al.
patent: 4920031 (1990-04-01), Ohno et al.
Adachi Keiichi
Inagaki Yoshio
Bowers Jr. Charles L.
Fuji Photo Film Co. , Ltd.
Neville Thomas R.
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